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ASTM F2660-12

(Test Method)

Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Hydrogen Embrittlement

Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Hydrogen Embrittlement

SIGNIFICANCE AND USE
4.1 This test method describes the testing procedure that shall be used to qualify a coating system that is under consideration for use on ASTM A490 high strength structural bolts made of any steel composition permitted by the A490 specification. The test method measures the susceptibility of coated specimen bolts to the influence of an externally applied potential (see 7.2.3.3) by testing for the threshold of embrittlement in a salt solution environment.
SCOPE
1.1 This test method defines the procedures and tests to evaluate the effect of a coating system on the susceptibility to environmental hydrogen embrittlement (EHE) of an ASTM A490 high strength structural bolt.  
1.2 This test method shall qualify a coating system for use with any size of A490 bolts (that is, 1/2 to 1-1/2 in.) high strength structural bolts, relative to EHE.  
1.3 The characteristic to be evaluated by this test method is the susceptibility to EHE caused by hydrogen generated from corrosion protection of the steel bolt by sacrificial galvanic corrosion of the coating. Testing shall be performed on coated, specimen ASTM A490 bolts manufactured to the maximum susceptible tensile strength values (see Table 1) of the bolt (see Section 5 Specimen Bolt Requirements). The internal hydrogen embrittlement (IHE) susceptibility will also be inherently evaluated when the EHE is tested through this test method. There is no need for a separate IHE susceptibility test.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Aug-2012
ICS
21.060.10 - Bolts, screws, studs
Technical Committee
F16 - Fasteners
Drafting Committee
F16.01 - Test Methods
Current Stage
Ref Project

Relations

Replaced By
ASTM F2660-13 - Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement
Effective Date
01-Nov-2013
Referred By
ASTM F3043-15 - Standard Specification for “Twist Off” Type Tension Control Structural Bolt/Nut/Washer Assemblies, Alloy Steel, Heat Treated, 200 ksi Minimum Tensile Strength
Effective Date
01-Sep-2012
Referred By
ASTM F3111-16 - Standard Specification for Heavy Hex Structural Bolt/Nut/Washer Assemblies, Alloy Steel, Heat Treated, 200 ksi Minimum Tensile Strength
Effective Date
01-Sep-2012
Referred By
ASTM F3125/F3125M-22 - Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
Effective Date
01-Sep-2012

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ASTM F2660-12 - Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Hydrogen EmbrittlementASTM F2660-12 - Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Hydrogen Embrittlement
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ASTM F2660-12 - Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Hydrogen Embrittlement
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2660 − 12
StandardTest Method for
Qualifying Coatings for Use on A490 Structural Bolts
1
Relative to Hydrogen Embrittlement
This standard is issued under the fixed designation F2660; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F606 Test Methods for Determining the Mechanical Proper-
ties of Externally and Internally Threaded Fasteners,
1.1 This test method defines the procedures and tests to
Washers, Direct Tension Indicators, and Rivets
evaluate the effect of a coating system on the susceptibility to
F1624 Test Method for Measurement of Hydrogen Em-
environmental hydrogen embrittlement (EHE) of an ASTM
brittlement Threshold in Steel by the Incremental Step
A490 high strength structural bolt.
Loading Technique
1.2 This test method shall qualify a coating system for use
F1789 Terminology for F16 Mechanical Fasteners
1 1
withanysizeofA490bolts(thatis, ⁄2to1- ⁄2in.)highstrength
F2078 Terminology Relating to Hydrogen Embrittlement
structural bolts, relative to EHE.
Testing
G3 Practice for Conventions Applicable to Electrochemical
1.3 The characteristic to be evaluated by this test method is
the susceptibility to EHE caused by hydrogen generated from Measurements in Corrosion Testing
G15 Terminology Relating to Corrosion and CorrosionTest-
corrosion protection of the steel bolt by sacrificial galvanic
3
corrosion of the coating. Testing shall be performed on coated, ing (Withdrawn 2010)
G44 PracticeforExposureofMetalsandAlloysbyAlternate
specimen ASTM A490 bolts manufactured to the maximum
susceptible tensile strength values (see Table 1) of the bolt (see Immersion in Neutral 3.5 % Sodium Chloride Solution
G82 Guide for Development and Use of a Galvanic Series
Section 5 Specimen Bolt Requirements). The internal hydro-
gen embrittlement (IHE) susceptibility will also be inherently for Predicting Galvanic Corrosion Performance
evaluated when the EHE is tested through this test method. 2.2 Research Council on Structural Connections:
There is no need for a separate IHE susceptibility test. Specification for Structural Joints Using High Strength Bolts
(LRFD) Load and Resistance Factor Design
1.4 This standard does not purport to address all of the
Specification for Structural Joints Using High Strength Bolts
safety concerns, if any, associated with its use. It is the
(ASD) Allowable Stress Design
responsibility of the user of this standard to establish appro-
2.3 Other References:
priate safety and health practices and determine the applica-
Townsend Jr., H. E., Met Trans, V6A, April, 1976
bility of regulatory limitations prior to use.
Raymond, L., The Susceptibility of Fasteners to Hydrogen
2. Referenced Documents
Embrittlement and Stress Corrosion Cracking: Fastener
2
System Design. In J. H. Bickford, & S. Nassar, Handbook
2.1 ASTM Standards:
of Bolts and Bolted Joints, New York, USA: Marcel
A490 Specification for Structural Bolts, Alloy Steel, Heat
Dekker, Inc., 1998, pp. 723-756
Treated, 150 ksi Minimum Tensile Strength
2.4 International Standards Organization (ISO):
E4 Practices for Force Verification of Testing Machines
ISO 17025 General Requirements for the Competence of
E8/E8M Test Methods for Tension Testing of Metallic Ma-
Testing and Calibration Laboratories
terials
F519 Test Method for Mechanical Hydrogen Embrittlement
3. Terminology
Evaluation of Plating/Coating Processes and Service En-
vironments 3.1 Definitions:
3.1.1 Terminology for this test method shall be used in
1 accordance with Terminology F1789, Terminology F2078, and
This test method is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.01 on Test Methods.
Terminology G15 except as described below.
Current edition approved Sept. 1, 2012. Published November 2012. DOI:
3.2 Definitions of Terms Specific to This Standard:
10.1520/F2660–12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2660 − 12
TABLE 1 Specimen Bolt Sizes and Wedge Tensile Load Values
6. Sample Quantities Required
Tensile
Nominal Minimum Wedge Tensile 6.1 A minimum of fifteen (15) bolts from any specimen lot
Stress
Size Length Load
shall be
...

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1.2.2 Type 2—Shoulder Eyebolt.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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